World Trade Center attack remembered on anniversary
We’ve reached the 23rd anniversary of use of aircraft by terrorists to bring down the Twin Towers at the World Trade Center (WTC) in New York City on Sept. 11, 2001. Two commercial jet planes struck the towers, causing their collapse and the destruction of four other WTC buildings. The attack killed 2,750 people at the Trade Center, many of them emergency responders. Photos by Dave Hawkins
